#400803#400803

#400803 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.3% C 0.086 H 31.0°. Best body text is #FFFFFF at 16.75:1 contrast (WCAG AA passes).

Color values

HEX	#400803
RGB	rgb(64, 8, 3)
HSL	hsl(5, 91%, 13%)
HSV	hsv(5, 95%, 25%)
CMYK	cmyk(0%, 87.5%, 95.3%, 74.9%)
CIE-LAB	lab(11.07, 26.21, 16.01)
CIE-LCH	lch(11.07, 30.71, 31.43°)
OKLab	oklab(24.34% 0.0738 0.0444)
OKLCH	oklch(24.34% 0.086 31)
XYZ	xyz(2.2179, 1.2706, 0.2146)
Luminance	0.0127 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400803 #033B40

analogous

#40031C #400803 #402603

triadic

#400803 #034008 #080340

tetradic

#400803 #1C4003 #033B40 #260340

square

#400803 #1C4003 #033B40 #260340

split-complementary

#400803 #034026 #031C40

monochromatic

#1D0401 #1D0401 #400803 #7A0F06 #B51708

Accessibility & contrast

On white

16.75

#400803 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#400803 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400803

16.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400803	#FFFFFF	#000000	##FFFFFF
##400803	1.00	16.75	1.25	16.75
#FFFFFF	16.75	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1602

Deuteranopia (green-blind)

#272201

Tritanopia (blue-blind)

#480007

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #400803;
/* rgb */ color: rgb(64, 8, 3);
/* oklch */ color: oklch(24.3% 0.086 31.0);

Tailwind

colors: {
  custom: {
    50: '#7a4d48',
    500: '#400803',
    950: '#000000',
  },
}

SCSS

$custom: #400803;
$custom-light: #7a4d48;
$custom-dark: #000000;

JSON

{
  "hex": "#400803",
  "rgb": {
    "r": 64,
    "g": 8,
    "b": 3
  },
  "hsl": {
    "h": 4.918,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.24341,
    "c": 0.08611,
    "h": 31
  },
  "luminance": 0.0127
}

Semantic roles & 50–950 ramp

primary

#400803

secondary

#1D7A82

accent

#EDFF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0100

muted

#7C7777

Preview Lab

Preview with #400803

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →